William tongue



UNITED STATES' I?A'IENI"OFFICE.ii;

WILLIAM TONGUE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGN-OR T0 W. TONGUEvAND JAMES BUCKLEY, OF SADSBURYV ILLE, PENNSYLVANIA.

LOOM.

To all whom t may concern Be it known that I, VILLIAM ToNcUE, of thecity of Philadelphia and State of Pennsylvania, have invented a new anduseful Improvement on the Loom.; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation.' of the same, reference being had to the annexeddrawings, making a part of this specification, in which- Figure l, is aperspective view of a loom with the improvement applied, and Fig. 2, asectional end view of the improvement-like letters indicating the sameparts when on both figures.

The nature of my invention' consists in so combining and applying to theleaves of heddles of looms, a continuous cord, and pulleys, that anynumber of the said heddles may be selected and operated (any change ofshed being thereby effected) at the pleasure of the operator.

Referring to the drawings, Fig. l, represents a back View of a powerloom-bu't as the invent-ion relates particularly only to the operationof the heddles-the usual or well known parts therein shown need not bedescribed.

A, is the continuous cord; B, the pulleys over which it passes and fromwhich it is suspended; C1, C2, are two double pulleys suspended upon thecontinuous cord (A). D, are levers which are also suspended from thecontinuous cord (A)-the two outside ones, in immediate connection withthe two ends of the cord (A), and the four inner ones, (through themedium of the two double pulleys C1, 02,). From these levers (D,) aresuspended the leaves of heddles (E), by means of the wires (a), and withthese heddles are connected, the treadles in the usual manner.

G, G, is a rack, consisting of a double series of slats, placed parallelwith each other, and at small distances apart, so as to allow the wiresa) which connect the heddles (E) with t e levers (D), to pass up anddown freely between them, and at the same time keep each pair of wiresseparate, and

the several pairs parallel with each other. The continuous cord (A) isapplied b attaching the one end thereof to one othe outside levers (D1,)and passing the other over the rst pulley of the series (B1), thencedownward, through one of the blocks containing the vdouble pulleys (C),thence upward and over the pulley (B2,),'thence downward 'and throughthe next block of double pulleys (C2), thence upward, and over pulley(133,), and downward to the other outside lever (D2) and to whichv thisend of the continuous cord 'is attached, as shown in the drawings. Thetwo outside levers (D1, D6,) and the two blocks of double pulleys (C1,(32,) being thus suspended, the intermediate levers are now suspendedimmediately from the two double pulley blocks-thus, the levers D2, andD3, by means of a short cord (C1) which passes over the lower pulley ofblock C1, and the levers D4, D5, in like manner by a cord (52,) overpulley C2.

The operation of my invention will now be apparent. The treadles of theloom be ing in connection, as before described, with the heddles, andthese, as just explained, with the continuous cord (A) through themedium of the wires (a), levers (D) and double pulleys (C), when anyone, or any number less than the whole of the treadles, is depressed,the corresponding leaves of heddles necessarily follow, uplifting allthe others, and each heddle leaf being kept separated laterally, fromthe others, by means of the rack (G,) as before described, their motionup and downis steady, free, accu-y rate and unobstructed.

The devices heretofore used for producing the sheds, in looms of thiskind, and called either dead pulleys or oscillating rollers, areincapable of allowing the leaves of heddles to work in any other mannerthan in pairs-that is to say, every two leaves of heddles are suspendedover a xed pulley or roller by a short separate cord, and consequently,when one heddle leaf is drawn down, its fellow must necessarily beelevated, and hence a selection of any contiguous number to be drawndown while either a less or great number is to be elevated, could not beaccomplished or effected. Hence the advantage of my invention isveryapparent. As any number of the leaves of heddles can be selected andoperated thereby, at the pleasure of the operator, Vand the loomconsequently be adapted thus, for a greater variety of fabrics, at avery small cost.

The continuous cord (A) may be applied in the same manner to operate agreater number of heddles, by simply increasing lthe number of thedouble pulleys (C) in the combination, and the levers (D) and Wires (a)may be dispensed with, by extending the upper part of the leaves ofheddles so as to operate between the rack slats (G) and in immediateconnection with cords, al-

though the levers are Well calculated for theV purpose, and afford aconvenient mode of checking or limiting their rising too high at anytime by means of the check cords as shown in the drawings. f

Having thus described the construction and operation of my invention,and pointed out its advantages over the old devices7 I proceed to statethat I do not claim the creased, or diminished as the number of shedsWanted may require.

WILLIAM TON GUE.

Witnesses:

BENJ. MORIsoN, STEPHEN F. SIMMONS.

